From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: To: 9fans@9fans.net From: Richard Miller <9fans@hamnavoe.com> Date: Mon, 5 Mar 2012 16:20:28 +0000 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] usb slowness Topicbox-Message-UUID: 66a5cc7e-ead7-11e9-9d60-3106f5b1d025 > a hisogram sure could be useful, but i think i'd want to taylor it to > a specific problem. and i haven't had one yet. The problem in hand is to check the hypothesis that usb disk slowness is due to "nearly all the time" being spent in interrupt handling. A quick glance at intrtimes should suffice for that.